Rhapsody in Blue

Another abstract for you to either enjoy or hate as the mood takes you.

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Then scroll down a little further.

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Ripples arriving on the beach washing coal grains around and leaving trails on the sand.  Viewed from directly above.
Image duplicated, flipped L>R and overlaid on the first.
Layers combined using GIMP's 'Grain Extract' mode.
Top layer moved about to get the best result, then flattened.

My original capture has been placed in the 'extras'.